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SN74AHCT257PW датащи(PDF) 5 Page - Texas Instruments |
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SN74AHCT257PW датащи(HTML) 5 Page - Texas Instruments |
5 / 7 page SN54AHCT257, SN74AHCT257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCLS351E – MAY 1996 – REVISED OCTOBER 1998 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) FROM TO LOAD SN74AHCT257 PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE TA = 25°C MIN MAX UNIT (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX tPLH AorB Y CL =15 pF ns tPHL A or B Y CL = 15 pF ns tPLH A/B Y CL =15 pF ns tPHL A/B Y CL = 15 pF ns tPZH OE Y CL =15 pF ns tPZL OE Y CL = 15 pF ns tPHZ OE Y CL =15 pF ns tPLZ OE Y CL = 15 pF ns tPLH AorB Y CL =50 pF ns tPHL A or B Y CL = 50 pF ns tPLH A/B Y CL =50 pF ns tPLH A/B Y CL = 50 pF ns tPZH OE Y CL =50 pF ns tPZL OE Y CL = 50 pF ns tPHZ OE Y CL =50 pF ns tPLZ OE Y CL = 50 pF ns noise characteristics VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4) PARAMETER SN74AHCT257 UNIT PARAMETER MIN TYP MAX UNIT VOL(P) Quiet output, maximum dynamic VOL V VOL(V) Quiet output, minimum dynamic VOL V VOH(V) Quiet output, minimum dynamic VOH V VIH(D) High-level dynamic input voltage V VIL(D) Low-level dynamic input voltage V NOTE 4: Characteristics are for surface-mount packages only. operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance No load, f = 1 MHz pF |
Аналогичный номер детали - SN74AHCT257PW |
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Аналогичное описание - SN74AHCT257PW |
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